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New Member

Why we nned to turn off PAgP on user access ports to avoid startup delays

Hi all,

I was reading that if users have Workstation Startup Connectivity Delays

we should do PAgP off in user switch side.Is that true?

9 REPLIES
Hall of Fame Super Silver

Re: Why we nned to turn off PAgP on user access ports to avoid s

Hello Mahesh,

it can help to save the time of PAGP negotiation at link change state to up

Hope to help

Giuseppe

New Member

Re: Why we nned to turn off PAgP on user access ports to avoid s

Hi qiuslar,

thanks for reply can u explai me in more detail what u said please?

thanks

mahesh

Re: Why we nned to turn off PAgP on user access ports to avoid s

If you have "workstation startup delays", I'm assuming that you mean you are having a hard time getting dhcp addresses in time? You disable spanning-tree on the port. PAgP is for etherchannel.

int fa0/1

descript workstation 1

spanning-tree portfast

Make sure that you only have a workstation connected to that port because if you have a hub, switch, router, access point, you can cause a loop. End hosts are fine.

HTH,

John

HTH, John *** Please rate all useful posts ***
New Member

Re: Why we nned to turn off PAgP on user access ports to avoid s

Hi blakley,

User tole me that he is having issues when Pc boots up and it takes a while when he sees the message applying network settings

here is user port config

oktulf26s1> (enable) sh port spantree 2/36

Port(s) Vlan Port-State Cost Prio Portfast Channel_id

------------------------ ---- ------------- --------- ---- -------- ----------

2/36 260 forwarding 3100 32 enabled 0

Port fast is enabled on switch port also speed is 100 full hardcoded on switch port and user NIC.

Purple

Re: Why we nned to turn off PAgP on user access ports to avoid s

Normally just using portfast is enough . If you want to turn on portfast and turn off channeling and trunking in one command just use the following command on "user" ports , "switchport host" .

New Member

Re: Why we nned to turn off PAgP on user access ports to avoid s

hi glen

thanks for reply

it is CATOS

her eis config for Mod 2

#module 2 : 48-port 10/100BaseTx Ethernet

set vlan 260 2/1-26,2/28-44

set vlan 261 2/45-48

set vlan 992 2/27

set port disable 2/1-7

set port speed 2/25,2/29-30,2/33,2/37,2/42,2/44 10

set port speed 2/1,2/3,2/5-8,2/11-14,2/16-17,2/20-21,2/23-24,2/26-28,2/35-36,2/38-39,2/41,2/43,2/45-48 100

set port duplex 2/1,2/3,2/5-8,2/11-14,2/16-17,2/20-21,2/23-24,2/26-28,2/35-36,2/38-39,2/41,2/43,2/45-48 full

set port trap 2/1-48 enable

set port name 2/1 bad or faulty

set port name 2/2 bad or faulty

set port name 2/3 bad or faulty

set port name 2/4 bad or faulty

set port name 2/5 bad or faulty

set port name 2/6 bad or faulty

set port name 2/7 bad or faulty

set port name 2/8 bad or faulty

set port name 2/9 2758

set port name 2/10 2754

set port name 2/15 2793

set port name 2/18 Exec Con Room 2906

set port name 2/19 2764

set port name 2/20 2896

set port name 2/21 2752

set port name 2/22 2750

set port name 2/23 2748

set port name 2/24 2746

set port name 2/26 VC-29

set port name 2/27 2607

set port name 2/28 2659

set port name 2/30 2873

set port name 2/31 21B_Exec Conf Room

set port name 2/32 2840

set port name 2/33 2611

set port name 2/34 2853

set port name 2/35 2627

set port name 2/38 2603

set port name 2/39 V415

set port name 2/40 2888-HR Conference

set port name 2/41 2625

set port name 2/43 2617

set port name 2/45 Wireless

set port name 2/46 Wireless

set port name 2/47 Wireless

set port name 2/48 Wireless

set trunk 2/2 off dot1q 1-1005

set trunk 2/5 off dot1q 1-1005

set trunk 2/6 off dot1q 1-1005

set trunk 2/18 off dot1q 1-1005

set trunk 2/22 off dot1q 1-1005

set trunk 2/31 off dot1q 1-1005

set trunk 2/32 off dot1q 1-1005

set trunk 2/45 on dot1q 1-1005

set trunk 2/46 on dot1q 1-1005

set trunk 2/47 on dot1q 1-1005

set trunk 2/48 on dot1q 1-1005

set spantree portfast 2/1-44 enable

set spantree portcost 2/1,2/5-7,2/9,2/13,2/19-24,2/26-28,2/35-36,2/38-39,2/41,2/43,2/45-48 3100

set spantree portvlancost 2/1 cost 3099

set spantree portvlancost 2/5 cost 3099

set spantree portvlancost 2/6 cost 3099

set spantree portvlancost 2/7 cost 3099

set spantree portvlancost 2/9 cost 3099

set spantree portvlancost 2/13 cost 3099

set spantree portvlancost 2/19 cost 3099

set spantree portvlancost 2/20 cost 3099

set spantree portvlancost 2/21 cost 3099

set spantree portvlancost 2/22 cost 3099

set spantree portvlancost 2/23 cost 3099

set spantree portvlancost 2/24 cost 3099

set spantree portvlancost 2/26 cost 3099

set spantree portvlancost 2/27 cost 3099

set spantree portvlancost 2/28 cost 3099

set spantree portvlancost 2/35 cost 3099

set spantree portvlancost 2/36 cost 3099

set spantree portvlancost 2/38 cost 3099

set spantree portvlancost 2/39 cost 3099

set spantree portvlancost 2/41 cost 3099

set spantree portvlancost 2/43 cost 3099

set spantree portvlancost 2/45 cost 3099

set spantree portvlancost 2/46 cost 3099

set spantree portvlancost 2/47 cost 3099

set spantree portvlancost 2/48 cost 3099

set port channel 2/2,2/5-6,2/18,2/22,2/31-32 mode off

end

let me know which commands i can user here to turn off trunking and ether channel?

Re: Why we nned to turn off PAgP on user access ports to avoid s

Mahesh,

With the "error" that you're describing, this can also be a problem with the workstation itself. Sometimes disjoining/rejoining the domain fixes the problem. If you can, I would move the user to another switchport to see if it follows the computer. If it doesn't, then the problem is the switchport. If it does, then it's a workstation problem.

HTH,

John

HTH, John *** Please rate all useful posts ***
New Member

Re: Why we nned to turn off PAgP on user access ports to avoid s

Hi,

user connected to other floor he has no issues.

i check switchport no errors are there.

port fast is enabled.

Purple

Re: Why we nned to turn off PAgP on user access ports to avoid s

For catos it would be "set port host slot/port" . Don't see anything out of place in the config you showed.

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